Ctjttllfg block for die presses



1,545,863 A, J. THOMAS CUTTING BLOCK POR DIE PRESSES Filed Nov. e, 1924by/MMM each operation of the Patented July 14, 1925.

UNITED -sTATEs PATENT oFE1cE.-

ALFRED J. THOMAS, OF BRAINTREE'I, 'MA-SSACHUSETTS.

CUTTING BLOCK Application led November la strip of material over thelupper face of said anvil in order to secure a new bearing surface forthe cutting edge of the die, at

press.

The invention consists primarily of )a metal anvil having secured to itsupper face 'a Sheet of fibre board.

The invention further consists in superi. imposing on this sheet oiiibre board, a

strip of material such as paper, and providing means for imparting tosaid strip, a step by step motion during the operation of the press.

The invention further consists of certain novel 'features otconstruction and arrangement of parts which will be understood .readilyby reference to the description ot the drawingsand to the claims to behereinafter given.

For the purpose of'illustrating the invention, one preferred fornithereof is illustrated in the drawings, this form hat/*ingV been foundto ,e'ive satisfactory and reliable results although it is to beunderstood vthat the various instrumentalities of which the inventionconsists can be variously arranged and organized and the invention isnot limited to the precise arrangement and orfanization of theseinstrunientalities as herein shown and described except as required bythe scope of the appended claims.

I 0f the drawings:

Figure 1 represents a vertical sectionof` an anvil er work supportingmember embodying' the principles of the present invention, said anvilbeing shown supported upon the bed of a die press 'and beneath thereciprocating pressure plate thereof,

Figure 2 represents a plan oi said anvil, and l FQR DE PRESSES.

6, 1924. Serial No. 748,077.

Figure 3 represents a section of the anvil on line 3, 3, on Fig. l, saidfigure being drawn to a reduced scale.

Similar characters indicate like parts throughout the several figures ofthe drawings.

.lnthe drawings 10 is the bed ci? a die press and 11 the verticallyreciprocating pressure member thereof. s the die press forms no part ofthe present invention and any well known, press may be used inconnectionvvith the invention, it is deemed unnecessary to furtherillustrate said press.

Upon the 'bed 10 is mounted a metal anvil. 12 which is not attached tosaid bed, but rel,-taiirs the position in whichit may be placed onaccount of the weight of said anvil,

t '.lhe anvil 12 has a deep depression 1 3 in its iront cud and alsodepressions 14 in the sides thereof as indicated in Fig. 3.

These depressions 13, 14 arel provided so thata shoe upper may be placedupon the front bportion of the anvil with portions thereof positioned insaid depressions, se that the portion to be operated upon may be made tolie flat beneath the die 15 which is used to cut designs in said upper.

It' a block was used with vertical sides it would be impossible toposition the upper so that any portion thereof would be tia upon theanvil.

Ilrorder 4to protect the cutting` edges of the die 15 when the dieingout' operationis being; performed. the anvil 12 is' provided with afibre hoard plate 16 which is secured ,to said anvil by means of thecentrally disposed screw 17 about `the axis of which the plate 1G'n1aybe rotated, so that when the forward part of the plate becomesunserviceable the rear part thereof may be moved. into position over thefront part of the anvil 12 23 to a receiving roll 2li on which it iswound as said strip is fed thereto.

The Jfeed roll 23 has a ratchet 25 rotatable therewith with which a pawl26 coacts4 to give a step by'step motion to said feed roll 23. I l l Anendless belt 27 from the roll 23 to the receiving roll 24 causes theserolls to rotate in `sunison. y f

'lfhe roll 22 is rovided with means for adjusting it towar and from itscompanion roll 23 thereb regulating the gripping conwat of the ro 15.22,es Wahine Strip eo.

The pawl 26 is pivotally mounted on a plunger 28 adapted to reciprocatevertically in the chamber 29 of' a cylindrical member 30 mounted on therear end` of the anvil i2.

Beneath' the plunger 28 is a helical spring 31 tending to force theplunger 28 upwardly.' so that the stem 32 thereof will extent va short'distance abovethe top of the die l5 so that when the pressure member11l descends it will strike said stem 32 and force the plunger 28downwardly against the tension of the spring 31, thereby permitting thepaivl 26 to engage a new tooth of the ratchet 25.

As soon as the die 15 is removed from the 'work W, after the pressuremember il has moved upwardly, the spring 31-will force the plunger 28upwardly, causing the pawl 26 to impart a partial rotation to theratchet 25, and thus feed the strip 20 and wind it upon the roll 24.

A collar 33 surrounds the stem`32 and is threaded to the upper end ofthev cylindrical member 30, the lower end of this collar co acting witha shoulder 34 on the plunger 28 to limit the upward movement thereof.

A member 35 threaded to'the lower'end of the cylindrical member 30'isadapted to reo'ulate the'tension of the spring 31.

llhe paper strip 20 is of sufficient thick ness to receive the cuttingedges of the die 15 without being cut through, but in case these cuttingedges do pass through the i paper strip they will not be injured as theywill simply cut into the face of the bre board plate 16.

It -is desirable to always have a flat plane face for the cutting edgesof the die to coact with when the work W is being operated upon and bygiving the strip 20 a step by step movement at each vcutting operation anew surface is provided `for each-successive operation. n v

This is of considerable importance as by this means a cleaner cut isassured.

lt is believed that theoperation and many advantages of theinvention'will be apparent without 'further description.

Having `thus described my invention, l. claim:

l. ln a die cutting bloeit. the combination of a weighted niet-al anvilik en Lacasse the bed cfa die press; i1 stlrip of flexible vmaterialsuperimposel'll thereon; and means supported by said aii.i" pfor movingsaid strip over the surface thelreof.

2. In a die cutting block, the combination of an anvil'freely movable onthe bed ot Aa die press; two rolls' mounted in bearings'at the ends ofsaid anvil; a strip of paper on one roll extending over the upper faceof said anvil and adapted tobe wound on the other roll; and meansactuatedby the pressure member of said press for rotating saidreceiving'roll.

In la' die cutting blockgxthe combination of an anvil freely movable onthe bed of -a die press; two rolls mounted in bearings at the ends ofsaid. anvil; a strip of paperon one roll extending over the upper faceof- I l"said anvil and adapted to be wound on the other roll; and meansactuated by the pressure member of said press for rotating saidreceiving roll and feeding the strip thereto. '4. ln a die cuttingblock, the combination of an anvil freely movable on the bed of a diepress, two rolls mounted in bearings at the ends of'said anvil; a stripof paper on one 'roll extending over the upper face of said anvil andadapted to be wound on the other roll; rolls at the rear of the anvilfor feeding said strip; `and means actuated J by the pressure member ofsaid press for rollspting said 'receiving roll and feeding ro s. `x

5. Ina die cutting block, the combination 'of an anvil freely movable onthe bed of a die press; two rolls mounted in bearings at the ends oisaid anvil; a strip of paper-on one y, roll extending over the upperface of said anvil and adapted to be wound on the other roll; rolls forfeeding said strip; a

ratchet revoluble with one ofsaid feed rolls;

and a reciprocating pawl coacting with said ratchet and adapted to beactuated by the downward movement ofthe pressure member of said press.

6. ln a die vcutting block, the combina.- tion of an anvil freelymovable on thebed of a die press, two rolls mounted in bearings at theends of said anvil; a strip of paper on oneroll extending over the upperface .of said anvil and adapted to be wound, on

the other roll; `rolls for feeding said stri a ratchet revoluble withone of said fee rolls; a reciprocating pawl coacting with said ratchetand 'adapted to be actuated by l the downward movement of the pressuremember of said press; and a spring pressed l plunger carrying said pawl.

7. ln a die cutting block, the combination of an anvil freely movableon'the bed'of a die press; two rolls mounted in bearings at the ends ofsaid anvil; a strip of paper on one roll extending overthe upper face otsaid anvil and adapted to be wound on the other roll; rolls for feedingsaid strip;

' t ratchet momma with one of gaia feea signed by me a@ 14o 01d southBmg rolls; atreciprocatmg pawl coactmg with Boston, Mass., this 3rd dayof O'ctobei1 said ratchet and adapted to be actuated by 1924.

the downward movement of the pressure ALFREIQ J. fmmms.-v

member'of 'lsad press; a spring pressed Witnesss:

plunger can' ing said pawl; and'means for WALTER E. LQMBARD, controllingt e movement of said plunger. NTHAN C. LOMBARD.

